Warkworth is a community in the municipality of Trent Hills, Northumberland in Central Ontario, Canada. Originally known as Percy Mills, the village of Warkworth was incorporated in 1857, and became part of Trent Hills when the latter was formed in 2001. Warkworth is named after Warkworth, Northumberland.

The Municipality of Trent Hills is a township municipality in Northumberland County in Central Ontario, Canada. It is on the Trent River and was created in 2001 through the amalgamation of the municipalities of Campbellford/Seymour, Percy Township and Hastings. Thereafter it was known in brief as Campbellford/Seymour, Percy, Hastings.